Senior Frontend Engineer

Description

**Our mission is to enable everyone to build wealth** ----------------------------------------------------- We reinvent how trading and investing work by creating exceptional products people love. That takes high standards, high velocity and engineers who own what they ship. Today, we serve over 6 million clients, with more than €38 billion in assets under management. At that scale, frontend performance, correctness and clarity are part of the product. Our frontend platform spans web and mobile: TypeScript, React, React Native and React Native Web in an Nx and pnpm monorepo, with TanStack Query, Zustand, Playwright, Detox and Jest. Around 95% of our code is reused across web and mobile. **About the role** ------------------ Senior Frontend Engineers work across our product domains. Your team match will reflect your strengths, interests and where you can contribute most. Across every team, the model is the same: small, autonomous groups, a weekly release cycle and ownership from problem definition through production. **What you’ll do** ------------------ * Own complex frontend features end to end across web and mobile. * Design and evolve React and React Native systems, shared libraries and durable abstractions. * Identify and resolve rendering, state\-management, bundle and runtime\-performance bottlenecks. * Use TypeScript to make behaviour explicit and prevent defects rather than suppressing type errors. * Work closely with product, backend engineering and QA to turn complex requirements into simple user experiences. * Keep quality high through code review, unit, end\-to\-end and visual\-regression testing. * Share knowledge, mentor colleagues and raise the frontend engineering standard. **What you need to have** ------------------------- * Proven ownership of production frontend systems built with React or React Native and TypeScript. * Strong knowledge of React rendering, component boundaries, data flow and state management. * A track record of designing maintainable frontend architecture and reusable abstractions. * Practical experience diagnosing performance problems in complex web or mobile products. * Sound testing judgement across unit, end\-to\-end and visual\-regression coverage. * Clear, structured problem\-solving and the ability to explain technical decisions and trade\-offs. * Strong engineering fundamentals, product judgement and confidence learning unfamiliar technologies. ***Depth in one frontend ecosystem and sound tool choice matter more than familiarity with every technology listed.*** **What to expect** ------------------ * Recruiter conversation * Code Review * Experience Deep Dive * Managerial interview Your recruiter will explain each stage clearly and follow up after every conversation. Bring your ambition to Europe’s fastest\-growing mobile broker!